Go to your local Home Depot or Lowes or Sears and look at their already assembled Sanke keg kegerators then convert that to two Cornys.
Reason I say this:
1) Here in NJ (usually around this time [July 4th]) they are decently priced at like 180-200 vs a 150 + 120 conversion kit (I'm assuming you want a tower)
2) It may only have one faucet, but you can drill out another or replace the tower easy as pie
3) It fits the kegs without having to bend stuff, drill stuff out, trim doors or any of that nonsense with finding cooling lines
4) The ones here will hold 50* without any temp control so one less thing to install
I figure I could have saved around $100-150 if I originally went that route.
Just get a freezer and do that way...as I know a lot of us (me icluded) will tell ya once you have 2 on tap you'll want more